Keskmine GPS koordinaadid postiindeks 356-764: 36.791, 126.431
videod linnad:
>> Galsan-dong/갈산동 356-764, Chungcheongnam-do/충남, Seosan-si/서산시, Sechangapateu/세창아파트, GPS koordinaadid: 36.79119,126.43108
videod linnad:
>> Galsan-dong/갈산동 356-764, Chungcheongnam-do/충남, Seosan-si/서산시, Sechangapateu/세창아파트, GPS koordinaadid: 36.79119,126.43108